I’ll leave the science debate over at Aetiology, where it belongs. But there’s definitely a mathematical aspect to this. Professor Culshaw lends her authority as a mathematician to the HIV denialist folks. Does her math support what she’s saying?

Alas, no.

Professor Culshaw is not a bad mathematician – quite the opposite. What I can read of her publications shows very solid mathematical work, done extremely well.

The problem is that when she tries to apply the mathematics to the science of epidemiology, she fails miserably, and the reason why is mathematical.